Exercise $6$

For a BPSK $($Binary Phase Shift Keying$)$ modulator with a carrier frequency of $1$ GHz and a bit rate of $10$ Mbps $,$ calculate:

$1.$ The number of bits per second.

$2.$ The minimum bandwidth with a filter having a roll$-$off factor $(\backslash (\backslash$alpha $\backslash ))$ of $0\mathrm{.}5.$

$3.$ The spectral efficiency.

$4.$ Draw the spectrum of the transmitted signal.